Retractable self rolling blind, awning or cover apparatus

a self-rolling, blind or cover technology, applied in the direction of sunshades, curtain suspension devices, building components, etc., can solve the problems of inconvenient operation, limited to the useful span of cover which could be conveniently achieved, and no known solution for covering a larger expans
US20050241779A1Inactive Publication Date: 2005-11-03ABOULOUKME ISSAM
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Patent Information

Authority / Receiving Office
US · United States
Current Assignee / Owner
ABOULOUKME ISSAM
Publication Date
2005-11-03
Estimated Expiration
Not applicable · inactive patent

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Abstract

A retractable self rolling blind, awning or cover apparatus (11), comprising two or more sheets of fabric or other suitable material (17) affixed and wound conjointly about a keyway tube (12), the tube (12) being fitted with a conventional spring mechanism for use with blinds, awnings and the like, the spring mechanism being pretensioned so as to cause the sheets of fabric (17) to be rewound about the keyway tube (12) when one or more of the sheets of fabric (17) is released from its extended or unwound position, and wherein the keyway tube (12) and spring are allowed to travel unwinding and winding up of the fabric (17).
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Description

FIELD OF THE INVENTION

[0001] This invention relates to self-rolling apparatus based on a conventional spring mechanism for items such as blinds, awnings and covers. However, the invention should not be construed as being limited thereto and any similar arrangement whereby the invention maybe suitably adapted is meant to be encompassed including advertising signs and the like. BACKGROUND TO THE INVENTION

[0002] Conventional spring blinds are provided with a so-called hollow keyway tube onto which one end of suitable blind fabric or other material is attached, the remainder of the material being wrapped or rolled around the periphery of the tube. A spring mechanism is provided within the hollow tube, which is itself supported between suitable brackets. The blind fabric maybe caused to unroll for any desired length (up to the limit of material rolled on the tube), usually by pulling on it, which causes the tube to rotate about it's axis, thereby winding up (ie. further tensioning) the...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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